From: Arnd Bergmann <arnd@arndb.de>
To: linuxppc-dev@ozlabs.org
Cc: Jan-Bernd Themann <themann@de.ibm.com>,
Ira Snyder <iws@ovro.caltech.edu>,
netdev@vger.kernel.org, Rusty Russell <rusty@rustcorp.com.au>,
linux-kernel@vger.kernel.org, shemminger@vyatta.com,
David Miller <davem@davemloft.net>
Subject: Re: [PATCH RFC v5] net: add PCINet driver
Date: Thu, 15 Jan 2009 22:22:53 +0100 [thread overview]
Message-ID: <200901152222.55006.arnd@arndb.de> (raw)
In-Reply-To: <20090115192129.GB9091@ovro.caltech.edu>
On Thursday 15 January 2009, Ira Snyder wrote:
> I have another question for you Arnd.
>
> What did you use as the host and guest drivers when you ran virtio over
> PCI? Did you use two unmodified instances of virtio_net (one on host,
> one on guest) for networking, or did you write new virtio drivers for
> those? How about for virtio_console (if you ran it at all).
Jan-Bernd may be able to tell you details about this, and send you the
driver code that his interns implemented for it.
This was only doing virtio_net between two machines using MMIO transfers,
i.e. the DMA engine was unused, but there was a mailbox interrupt (if you
have one of these, you won't need MSI, btw -- just write a DMA to it).
Arnd <><
WARNING: multiple messages have this Message-ID (diff)
From: Arnd Bergmann <arnd@arndb.de>
To: linuxppc-dev@ozlabs.org
Cc: Ira Snyder <iws@ovro.caltech.edu>,
netdev@vger.kernel.org, Rusty Russell <rusty@rustcorp.com.au>,
linux-kernel@vger.kernel.org, shemminger@vyatta.com,
David Miller <davem@davemloft.net>,
"Jan-Bernd Themann" <themann@de.ibm.com>
Subject: Re: [PATCH RFC v5] net: add PCINet driver
Date: Thu, 15 Jan 2009 22:22:53 +0100 [thread overview]
Message-ID: <200901152222.55006.arnd@arndb.de> (raw)
In-Reply-To: <20090115192129.GB9091@ovro.caltech.edu>
On Thursday 15 January 2009, Ira Snyder wrote:
> I have another question for you Arnd.
>
> What did you use as the host and guest drivers when you ran virtio over
> PCI? Did you use two unmodified instances of virtio_net (one on host,
> one on guest) for networking, or did you write new virtio drivers for
> those? How about for virtio_console (if you ran it at all).
Jan-Bernd may be able to tell you details about this, and send you the
driver code that his interns implemented for it.
This was only doing virtio_net between two machines using MMIO transfers,
i.e. the DMA engine was unused, but there was a mailbox interrupt (if you
have one of these, you won't need MSI, btw -- just write a DMA to it).
Arnd <><
next prev parent reply other threads:[~2009-01-15 21:23 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-01-07 19:50 [PATCH RFC v5] net: add PCINet driver Ira Snyder
2009-01-07 19:50 ` Ira Snyder
2009-01-08 19:16 ` David Miller
2009-01-08 19:16 ` David Miller
2009-01-08 19:16 ` David Miller
2009-01-08 19:27 ` Ira Snyder
2009-01-08 19:27 ` Ira Snyder
2009-01-08 21:51 ` Ira Snyder
2009-01-10 23:32 ` Benjamin Herrenschmidt
2009-01-10 23:32 ` Benjamin Herrenschmidt
2009-01-12 17:56 ` Arnd Bergmann
2009-01-12 17:56 ` Arnd Bergmann
2009-01-13 2:32 ` Rusty Russell
2009-01-13 2:32 ` Rusty Russell
2009-01-13 3:34 ` Ira Snyder
2009-01-13 3:34 ` Ira Snyder
2009-01-13 16:33 ` Arnd Bergmann
2009-01-13 16:33 ` Arnd Bergmann
2009-01-13 16:40 ` Ira Snyder
2009-01-13 16:40 ` Ira Snyder
2009-01-13 17:42 ` Arnd Bergmann
2009-01-13 17:42 ` Arnd Bergmann
2009-01-15 0:12 ` Ira Snyder
2009-01-15 0:12 ` Ira Snyder
2009-01-15 12:58 ` Arnd Bergmann
2009-01-15 12:58 ` Arnd Bergmann
2009-01-15 16:54 ` Ira Snyder
2009-01-15 16:54 ` Ira Snyder
2009-01-15 17:53 ` Arnd Bergmann
2009-01-15 17:53 ` Arnd Bergmann
2009-01-15 18:20 ` Ira Snyder
2009-01-15 18:20 ` Ira Snyder
2009-01-15 20:57 ` Arnd Bergmann
2009-01-15 23:27 ` Ira Snyder
2009-01-15 23:27 ` Ira Snyder
2009-01-15 19:21 ` Ira Snyder
2009-01-15 19:21 ` Ira Snyder
2009-01-15 21:22 ` Arnd Bergmann [this message]
2009-01-15 21:22 ` Arnd Bergmann
2009-01-15 21:40 ` Ira Snyder
2009-01-15 21:40 ` Ira Snyder
2009-01-15 22:53 ` Arnd Bergmann
2009-01-15 22:53 ` Arnd Bergmann
2009-01-15 23:31 ` Ira Snyder
2009-01-15 23:31 ` Ira Snyder
2009-01-16 9:15 ` Jan-Bernd Themann
2009-01-16 9:15 ` Jan-Bernd Themann
2009-01-08 19:16 ` David Miller
2009-01-08 19:16 ` David Miller
-- strict thread matches above, loose matches on Subject: below --
2009-01-07 19:50 Ira Snyder
2009-01-07 19:50 Ira Snyder
2009-01-07 19:50 Ira Snyder
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